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REVENUE RECOGNITION (Tables) | 9 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Summary of Revenue Disaggregation | Disaggregated revenue by primary geographical market and timing of revenue recognition for the Company’s single product line are as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
| (In thousands)
Primary geographical markets: |  |  |  |  |  |  |
U.S. | $ | 267,553 |  |  | $ | 139,924 |  |  | $ | 769,911 |  |  | $ | 420,315 |
International | 83,966 |  |  | 38,579 |  |  | 199,419 |  |  | 89,271 |
Total | $ | 351,519 |  |  | $ | 178,503 |  |  | $ | 969,330 |  |  | $ | 509,586 |
Timing of revenue recognition: |  |  |  |  |  |  |
Products delivered at a point in time | $ | 336,359 |  |  | $ | 166,729 |  |  | $ | 927,330 |  |  | $ | 475,707 |
Products and services delivered over time | 15,160 |  |  | 11,774 |  |  | 42,000 |  |  | 33,879 |
Total | $ | 351,519 |  |  | $ | 178,503 |  |  | $ | 969,330 |  |  | $ | 509,586 |
Summary of Contract Assets and Contract Liabilities, and Changes in Balances from Contracts with Customers | Receivables, and contract assets and contract liabilities from contracts with customers are as follows:
| September 30, 2021 |  | December 31, 2020
| (In thousands)
Receivables | $ | 273,012 |  |  | $ | 182,165 |
Short-term contract assets (Prepaid expenses and other assets) | 22,461 |  |  | 17,879 |
Long-term contract assets (Other assets) | 67,380 |  |  | 51,986 |
Short-term contract liabilities (Deferred revenues, current) | 59,232 |  |  | 47,665 |
Long-term contract liabilities (Deferred revenues, non-current) | 177,249 |  |  | 125,473 |
Significant changes in the balances of contract assets (prepaid expenses and other assets) during the nine months ended September 30, 2021 are as follows (in thousands):
Contract Assets |
Contract Assets, beginning of period | $ | 69,865 |
Amount recognized | (15,957) |
Increase | 35,933 |
Contract Assets, end of period | $ | 89,841 |
Significant changes in the balances of contract liabilities (deferred revenues) during the nine months ended September 30, 2021 are as follows (in thousands):
Contract Liabilities |
Contract Liabilities, beginning of period | $ | 173,138 |
Revenue recognized | (48,704) |
Increase due to billings | 112,047 |
Contract Liabilities, end of period | $ | 236,481 |
Summary of Estimated Revenue Expected to be Recognized in Future Periods | Estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period are as follows:
| September 30, 2021
| (In thousands)
Fiscal year: |
2021 (remaining three months) | $ | 16,241 |
2022 | 56,803 |
2023 | 50,566 |
2024 | 45,344 |
2025 | 38,377 |
Thereafter | 29,150 |
Total | $ | 236,481 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 + Details
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